Gravity line
[化] 自流管
🧩 词语组成解析
line
[laɪn]
n. 线条;排;行列;界线;
vt. 排队;用线标出;沿…排列成行;给…安衬里;
vi. 形成一层;排队;击出平直球;
🗣️ 情景例句
I promise not to think about the city.
我保证不再去想城里的事。
After dinner I read a magazine and made some telephone calls.
在晚饭以后我读一本杂志和打了一些电话。
I sat in the front of the bus to get a good view of the countryside.
我坐在汽车的前部，以便饱览农村风光。